(a) the sun orbits the milky way galaxy once every 2.60 ⨯ 108 years, with a roughly circular orbit averaging 3.00 ⨯ 104 light years in radius. (a light year is the distance traveled by light in one year.) calculate the centripetal acceleration of the sun in its galactic orbit. m/s2 (b) calculate the average speed of the sun in its galactic orbit. 217476.485 m/s

The magnitude of the net of force is about 37 Newton

Centripetal Acceleration can be formulated as follows:

a = Centripetal Acceleration ( m/s² )

v = Tangential Speed of Particle ( m/s )

R = Radius of Circular Motion ( m )

Centripetal Force can be formulated as follows:

F = Centripetal Force ( m/s² )

m = mass of Particle ( kg )

v = Tangential Speed of Particle ( m/s )

R = Radius of Circular Motion ( m )

Let us now tackle the problem !

Given:

period of the circular motion = T = 2.60 × 10⁸ = 8.20 × 10¹⁵ seconds

radius of the orbit = R = 3.00 × 10⁴ light years = 2.84 × 10²⁰ m

Unknown:

(a) centripetal acceleration = a = ?

(b) average speed = v = ?

Solution:

Grade: High School

Subject: Physics

Chapter: Circular Motion

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

the answer is kevlar